Finding the Third Proportional to 64,720.50 and 86,024.25

Step by Step Solution

1. Step 1: Write the proportion equation
   64,720.50 : 86,024.25 = 86,024.25 : x
2. Step 2: Convert to fraction form
   64,720.50/86,024.25 = 86,024.25/x
3. Step 3: Cross multiply
   64,720.50x = 86,024.25 × 86,024.25
4. Step 4: Simplify right side
   64,720.50x = 7,400,171,588.06
5. Step 5: Solve for x
   x = 7,400,171,588.06/64,720.50
6. Step 6: Final answer
   x = 114,340.46